SPROUTING RESPONSES OF Solanum tuberosum L. MINITUBERS TO HYDROGEN PEROXIDE AND SALICYLATE TREATMENT
Year: 2025
Type: article
Abstract: Background: Little is known about the long-term physiological effects of salicylic acid (SA) and hydrogen peroxide H2O2 on sprouting potato tubers and their possible short- and long-term effects as signaling molecules. Objective: To evaluate the effects of SA and H2O2 on the control of minituber sprouting. Methodology: The following research was carried out at the INIFAP facilities, Sitio Experimental Metepec, Edo. of Mexico. Microplants were transplanted into the soil in a greenhouse and sprayed twice a week with H2O2 (1, 5 mM) or SA (10-5, 10-6 M), the number and fresh weight of minitubers per plant were evaluated. Subsequently, the minitubers were stored for sprouting, keeping half of each treatment at 8 °C and the other half at 18 °C. After 60 days of storage at 8 °C, the percentage, length and number of shoots per tuber were evaluated. Results: Low concentrations of H2O2 and SA significantly improved the sprouting percentage, while high concentrations significantly reduced it. Shoot length was reduced by 40% after treatment with 5 mM H2O2 and 10-6 M SA. After 60 days of storage at 18 °C, low concentrations of these molecules such as 1 mM H2O2 and 10-6 M SA reduced the sprouting percentage. The number of shoots per minituber increased by 10-5 M SA. Implications: This work demonstrated the potential of SA and H2O2 for practical application and tuber sprouting research. Conclusion: The results suggest that SA and H2O2 induce postharvest physiological effects on the sprouting of minitubers from the moment the plant is in cultivation.
DOI: 10.56369/tsaes.5308
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: gold
Estimated APC paid: $150
OpenAlex ID: W4407671647